"""
Tests for Nutricore FastAPI endpoints
"""

import pytest
from httpx import AsyncClient, ASGITransport
import database
import sys, os
sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))


@pytest.fixture
async def client(tmp_path):
    db_path = str(tmp_path / "test.db")
    database.DB_PATH = db_path
    database.init_db()

    from main import app
    transport = ASGITransport(app=app)
    async with AsyncClient(transport=transport, base_url="http://test") as ac:
        yield ac


@pytest.mark.asyncio
async def test_root(client):
    r = await client.get("/")
    assert r.status_code == 200
    data = r.json()
    assert "Nutricore" in data["service"]
    assert data["status"] == "running"


@pytest.mark.asyncio
async def test_health(client):
    r = await client.get("/health")
    assert r.status_code == 200
    assert r.json()["status"] == "healthy"


@pytest.mark.asyncio
async def test_get_all_products(client):
    r = await client.get("/api/products")
    assert r.status_code == 200
    data = r.json()
    assert "products" in data
    assert data["total"] == 12
    assert len(data["products"]) == 12


@pytest.mark.asyncio
async def test_get_products_by_category_fruit(client):
    r = await client.get("/api/products?category=Fruit")
    assert r.status_code == 200
    data = r.json()
    assert data["total"] == 5
    for p in data["products"]:
        assert "Fruit" in p["category"]


@pytest.mark.asyncio
async def test_get_products_by_category_vegetable(client):
    r = await client.get("/api/products?category=Vegetable")
    assert r.status_code == 200
    data = r.json()
    assert data["total"] == 4


@pytest.mark.asyncio
async def test_get_products_by_category_green(client):
    r = await client.get("/api/products?category=Green")
    assert r.status_code == 200
    data = r.json()
    assert data["total"] == 3


@pytest.mark.asyncio
async def test_get_product_by_id(client):
    r = await client.get("/api/products/1")
    assert r.status_code == 200
    data = r.json()
    assert data["id"] == 1
    assert data["name"] == "Banana Powder"
    assert data["price"] == 850


@pytest.mark.asyncio
async def test_get_product_not_found(client):
    r = await client.get("/api/products/999")
    assert r.status_code == 404


@pytest.mark.asyncio
async def test_get_categories(client):
    r = await client.get("/api/products/categories")
    assert r.status_code == 200
    data = r.json()
    assert "categories" in data
    assert len(data["categories"]) == 3
    assert "Fruit Powders" in data["categories"]
    assert "Vegetable Powders" in data["categories"]
    assert "Green Leaf Powders" in data["categories"]


@pytest.mark.asyncio
async def test_get_orders_empty(client):
    r = await client.get("/api/orders")
    assert r.status_code == 200
    data = r.json()
    assert data["orders"] == []


@pytest.mark.asyncio
async def test_get_delivery_info(client):
    r = await client.get("/api/delivery")
    assert r.status_code == 200
    data = r.json()
    assert "delivery" in data
    assert "lahore" in data["delivery"]
    assert "karachi" in data["delivery"]


@pytest.mark.asyncio
async def test_products_have_required_fields(client):
    r = await client.get("/api/products")
    data = r.json()
    required = ["id", "name", "category", "weight", "price", "description", "image"]
    for p in data["products"]:
        for field in required:
            assert field in p, f"Missing field: {field} in product {p.get('name')}"


@pytest.mark.asyncio
async def test_products_prices_in_pkr(client):
    r = await client.get("/api/products")
    data = r.json()
    for p in data["products"]:
        assert p["price"] >= 400, f"Price too low for {p['name']}"
        assert p["price"] <= 1500, f"Price too high for {p['name']}"